#257E83#257E83

#257E83 is a mid, moderate teal. Relative luminance 0.170; OKLCH L 54.4% C 0.081 H 200.5°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#257E83
RGB	rgb(37, 126, 131)
HSL	hsl(183, 56%, 33%)
HSV	hsv(183, 72%, 51%)
CMYK	cmyk(71.8%, 3.8%, 0%, 48.6%)
CIE-LAB	lab(48.20, -23.69, -10.28)
CIE-LCH	lch(48.20, 25.82, 203.45°)
OKLab	oklab(54.45% -0.0761 -0.0285)
OKLCH	oklch(54.45% 0.081 200.5)
XYZ	xyz(12.3187, 16.9523, 24.0912)
Luminance	0.1695 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257E83 #832A25

analogous

#258359 #257E83 #254F83

triadic

#257E83 #83257E #7E8325

tetradic

#257E83 #592583 #832A25 #4F8325

square

#257E83 #592583 #832A25 #4F8325

split-complementary

#257E83 #83254F #835925

monochromatic

#0A2224 #185053 #257E83 #32ACB3 #54C8CF

Accessibility & contrast

On white

4.78

#257E83 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#257E83 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257E83

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257E83	#FFFFFF	#000000	##FFFFFF
##257E83	1.00	4.78	4.39	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#747883

Deuteranopia (green-blind)

#676E83

Tritanopia (blue-blind)

#00837F

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #257e83;
/* rgb */ color: rgb(37, 126, 131);
/* oklch */ color: oklch(54.4% 0.081 200.5);

Tailwind

colors: {
  custom: {
    50: '#6fa3a7',
    500: '#257e83',
    950: '#000000',
  },
}

SCSS

$custom: #257e83;
$custom-light: #6fa3a7;
$custom-dark: #000000;

JSON

{
  "hex": "#257e83",
  "rgb": {
    "r": 37,
    "g": 126,
    "b": 131
  },
  "hsl": {
    "h": 183.191,
    "s": 55.952,
    "l": 32.941
  },
  "oklch": {
    "l": 0.54445,
    "c": 0.08127,
    "h": 200.5
  },
  "luminance": 0.16954
}

Semantic roles & 50–950 ramp

primary

#257E83

secondary

#B35651

accent

#5149DF

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#080F0F

muted

#7B7F7F

Preview Lab

Preview with #257E83

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →